Update chapters on housekeeping, add changelog documentation

Author: Julien Neuhart

docs/docs/03_API/4_Housekeeping.md

@@ -15,16 +15,24 @@ You should update to the latest minor/majors version whenever a new version is a
 
 See [Symfony releases](https://symfony.com/releases).
 
-## Minor Versions
+### Minor Versions
 
 See https://symfony.com/doc/current/setup/upgrade_minor.html.
 
-## Major Versions
+### Major Versions
 
 See https://symfony.com/doc/current/setup/upgrade_major.html.
 
 :::note
 
 📣  Make sure your Symfony bundles are ready before updating.
 
-:::
+:::
+
+## Composer
+
+To show the list of direct outdated dependencies, run:
+
+```bash title="console"
+composer outdated --direct
+```

docs/docs/04_Web Application/4_Housekeeping.md

@@ -11,8 +11,10 @@ Please read it carefully, as those actions will ensure your project is still rel
 
 ## Nuxt.js
 
-From time to time, check for new releases of your main packages: 
+From time to time: 
 
-1. Update the corresponding versions in your *src/webapp/package.json* file.
-2. Remove the file *src/webapp/yarn.lock* and the folder *src/webapp/node_modules*.
-3. Recreate the `webapp` service with `docker-compose up -d --force webapp`.
+1. Remove the file *src/webapp/yarn.lock* and the folder *src/webapp/node_modules*.
+2. Recreate the `webapp` service with `docker-compose up -d --force webapp`.
+3. (optional) Run `yarn outdated` for additional packages to update.
+4. (optional) Update their versions in the *src/webapp/package.json* file.
+5. Repeat! 😄